


import argparse
import shutil
from pathlib import Path

from tqdm import tqdm

from transformers import AutoTokenizer
def 							UpperCamelCase_(					_A :Union[str, Any]					,  _A :Dict					,  _A :Any					,  _A :Union[str, Any]=10_24	)->		Any:
			UpperCamelCase__,   UpperCamelCase__       =							[], []

			UpperCamelCase__       =							list(zip(_A					,  _A	)	)
			UpperCamelCase__,   UpperCamelCase__       =							sorted_examples[0]

			def is_too_big(_A :str	):
						return tok(_A					,  return_tensors="pt"	).input_ids.shape[1] > max_tokens

			for src, tgt in tqdm(sorted_examples[1:]	):
						UpperCamelCase__       =							new_src + " " + src
						UpperCamelCase__       =							new_tgt + " " + tgt
						if is_too_big(_A	) or is_too_big(_A	):  # cant fit, finalize example
									finished_src.append(_A	)
									finished_tgt.append(_A	)
									UpperCamelCase__,   UpperCamelCase__       =							src, tgt
						else:  # can fit, keep adding
									UpperCamelCase__,   UpperCamelCase__       =							cand_src, cand_tgt

    # cleanup
			if new_src:
						assert new_tgt
						finished_src.append(_A	)
						finished_tgt.append(_A	)
			return finished_src, finished_tgt
def 							UpperCamelCase_(					_A :Union[str, Any]					,  _A :Path					,  _A :str					,  _A :List[str]	)->		List[str]:
			UpperCamelCase__       =							Path(_A	)
			save_path.mkdir(exist_ok=_A	)
			for split in ["train"]:
						UpperCamelCase__,   UpperCamelCase__       =							data_dir / F'''{split}.source''', data_dir / F'''{split}.target'''
						UpperCamelCase__       =							[x.rstrip() for x in Path(_A	).open().readlines()]
						UpperCamelCase__       =							[x.rstrip() for x in Path(_A	).open().readlines()]
						UpperCamelCase__,   UpperCamelCase__       =							pack_examples(_A					,  _A					,  _A					,  _A	)
						print(F'''packed {split} split from {len(_A	)} examples -> {len(_A	)}.'''	)
						Path(save_path / F'''{split}.source'''	).open("w"	).write("\n".join(_A	)	)
						Path(save_path / F'''{split}.target'''	).open("w"	).write("\n".join(_A	)	)
			for split in ["val", "test"]:
						UpperCamelCase__,   UpperCamelCase__       =							data_dir / F'''{split}.source''', data_dir / F'''{split}.target'''
						shutil.copyfile(_A					,  save_path / F'''{split}.source'''	)
						shutil.copyfile(_A					,  save_path / F'''{split}.target'''	)
def 							UpperCamelCase_(					)->		int:
			UpperCamelCase__       =							argparse.ArgumentParser()
			parser.add_argument("--tok_name"					,  type=_A					,  help="like facebook/bart-large-cnn,t5-base, etc."	)
			parser.add_argument("--max_seq_len"					,  type=_A					,  default=1_28	)
			parser.add_argument("--data_dir"					,  type=_A	)
			parser.add_argument("--save_path"					,  type=_A	)
			UpperCamelCase__       =							parser.parse_args()
			UpperCamelCase__       =							AutoTokenizer.from_pretrained(args.tok_name	)
			return pack_data_dir(_A					,  Path(args.data_dir	)					,  args.max_seq_len					,  args.save_path	)


if __name__ == "__main__":
						packer_cli()






def 							UpperCamelCase_(					_A :list[list]	)->		list[list]:
			UpperCamelCase__       =							current_set.copy()
			for row_index, row in enumerate(_A	):
						UpperCamelCase__       =							row[0]
						for column_index, column in enumerate(_A	):
									if magnitude == 0:
												UpperCamelCase__       =							column
												continue
									UpperCamelCase__       =							column / magnitude
    # Subtract to cancel term
			UpperCamelCase__       =							current_set[0]
			UpperCamelCase__       =							[first_row]
			UpperCamelCase__       =							current_set[1::]
			for row in current_set:
						UpperCamelCase__       =							[]
						# If first term is 0, it is already in form we want, so we preserve it
						if row[0] == 0:
									final_set.append(_A	)
									continue
						for column_index in range(len(_A	)	):
									temp_row.append(first_row[column_index] - row[column_index]	)
						final_set.append(_A	)
			# Create next recursion iteration set
			if len(final_set[0]	) != 3:
						UpperCamelCase__       =							final_set[0]
						UpperCamelCase__       =							[]
						UpperCamelCase__       =							[]
						for row in final_set[1::]:
									current_first_column.append(row[0]	)
									next_iteration.append(row[1::]	)
						UpperCamelCase__       =							simplify(_A	)
						for i in range(len(_A	)	):
									resultant[i].insert(0					,  current_first_column[i]	)
						resultant.insert(0					,  _A	)
						UpperCamelCase__       =							resultant
			return final_set
def 							UpperCamelCase_(					_A :list[list]	)->		list:
			if len(_A	) == 0:
						raise IndexError("solve_simultaneous() requires n lists of length n+1"	)
			UpperCamelCase__       =							len(_A	) + 1
			if any(len(_A	) != _length for item in equations	):
						raise IndexError("solve_simultaneous() requires n lists of length n+1"	)
			for row in equations:
						if any(not isinstance(_A					,  (int, float)	) for column in row	):
									raise ValueError("solve_simultaneous() requires lists of integers"	)
			if len(_A	) == 1:
						return [equations[0][-1] / equations[0][0]]
			UpperCamelCase__       =							equations.copy()
			if any(0 in row for row in data_set	):
						UpperCamelCase__       =							data_set.copy()
						UpperCamelCase__       =							[]
						for row_index, row in enumerate(_A	):
									if 0 not in row:
												UpperCamelCase__       =							data_set.pop(_A	)
												break
						if not full_row:
									raise ValueError("solve_simultaneous() requires at least 1 full equation"	)
						data_set.insert(0					,  _A	)
			UpperCamelCase__       =							data_set.copy()
			UpperCamelCase__       =							simplify(_A	)
			UpperCamelCase__       =							simplified[::-1]
			UpperCamelCase__       =							[]
			for row in simplified:
						UpperCamelCase__       =							row[-1]
						if not solutions:
									if row[-2] == 0:
												solutions.append(0	)
												continue
									solutions.append(current_solution / row[-2]	)
									continue
						UpperCamelCase__       =							row.copy()[: len(_A	) - 1 :]
						while temp_row[0] == 0:
									temp_row.pop(0	)
						if len(_A	) == 0:
									solutions.append(0	)
									continue
						UpperCamelCase__       =							temp_row[1::]
						UpperCamelCase__       =							temp_row[::-1]
						for column_index, column in enumerate(_A	):
									current_solution -= column * solutions[column_index]
						solutions.append(_A	)
			UpperCamelCase__       =							[]
			for item in solutions:
						final.append(float(round(_A					,  5	)	)	)
			return final[::-1]


if __name__ == "__main__":
						import doctest

						doctest.testmod()
						__UpperCamelCase     		=							[
						    [2, 1, 1, 1, 1, 4],
						    [1, 2, 1, 1, 1, 5],
						    [1, 1, 2, 1, 1, 6],
						    [1, 1, 1, 2, 1, 7],
						    [1, 1, 1, 1, 2, 8],
						]
						print(solve_simultaneous(eq))
						print(solve_simultaneous([[4, 2]]))


